cd /data/media
mkdir photo
mkdir document
mkdir video
mkdir audio
mkdir photo/weixin
touch photo/weixin/1.jpg
touch photo/weixin/2.jpg
touch photo/weixin/3.jpg
touch photo/weixin/1.mp3
touch photo/weixin/1.mp4
mkdir photo/taobao
touch photo/taobao/1.mp4
mkdir taobao
touch taobao/1.jpg
mkdir image
touch image/1.jpg
touch image/2.jpg
mkdir alarms
touch alarms/tree.mp3
mkdir wps
touch wps/news.pdf
touch wps/introduce.doc
